JP2023157147A - Spandrel mounting structure, method for modifying spandrel and spandrel mounting structure - Google Patents

Abstract

To provide a spandrel mounting structure capable of suppressing the occurrence of a scaly pattern as a whole due to depression of a decorative surface due to expansion of a spandrel, while using the general commercially available spandrel.SOLUTION: This spandrel mounting structure is a spandrel mounting structure in which a plurality of spandrels 1 are attached to a base (a base plate 2 and a horizontal rim 5) adjacent to each other. The spandrel mounting structure includes a backing member 14, etc., whose front side portion contacts the back side of a decorative surface 13 of the spandrel 1, and whose back side portion contacts the base between the spandrel 1 and the base.SELECTED DRAWING: Figure 1

Description

The present invention relates to a spandrel mounting structure in which a spandrel is fixed to a base provided on a wall surface or the like, a spandrel, and a method for repairing the spandrel mounting structure.

Conventionally, as shown in FIG. 7, a spandrel mounting structure 9 has been known in which a plurality of spandrels 91 are adjacent to each other and screwed to a base 92 such as a wall of a building. In such a spandrel mounting structure, the individual spandrels 91 may expand due to sunlight in summer or the like, causing the decorative surface to become depressed, resulting in a scaly pattern as a whole.

Patent Document 1 discloses a projecting portion having a groove for receiving an upright end piece provided at one end of the spandrel, and a projecting portion of the projecting portion, in order to prevent deformation of the spandrel due to thermal expansion. a fixing substrate extending outward from the base and having fixing screw holes; and a backing plate portion extending from the fixing substrate to the back side of the one end of the spandrel and coming into contact with the back surface of the end of the spandrel. Disclosed is a spandrel fixing structure in which the spandrel is screwed to a base by a fixing device that elastically engages with the end upright piece of the spandrel.

Patent No. 4424548

However, with the above-mentioned engagement using the fixing tool, it is not certain whether it is possible to prevent a scale-like pattern from occurring as a whole due to the recesses on the decorative surface of each spandrel, even though the structure uses general commercially available spandrels.

The present invention provides a spandrel mounting structure, a spandrel, and a method for repairing the spandrel mounting structure, which can suppress the occurrence of scale-like patterns as a whole due to depression of the decorative surface due to expansion of the spandrel, while using general commercially available spandrels. That is the issue.

The spandrel mounting structure of the present invention is a spandrel mounting structure in which a plurality of spandrels are attached to a substrate adjacent to each other, and between the spandrels and the substrate, the front side portion contacts the back surface of the decorative surface of the spandrel. The device is characterized in that it includes a lining member whose back side portion contacts the base.

With the above configuration, since the decorative surface of the spandrel is received from the back side by the lining member, denting of the decorative surface when the spandrel expands is prevented, and the occurrence of scale-like patterns as a whole is suppressed. can do. The spandrels themselves do not need to have a special structure, and various general commercially available spandrels can be used as the spandrels.

Of the two contacts of the lining member, at least the contact with the back surface of the decorative surface may be surface contact. Due to the surface contact, the decorative surface of the spandrel can be stably received from the back side thereof.

The backing member may be adhered to the back of the decorative surface of the spandrel. According to this, by performing the work of attaching the spandrel to the base, the backing member is also attached at the same time.

A pilot hole with a diameter larger than the thread diameter of the screw and smaller than the head diameter of the screw is formed at the screw driving location where the screw fixing the spandrel to the substrate is driven. The spandrel may be fixed to the base using screws. According to this, a gap (clearance) is formed between the screw and the pilot hole, so that the spandrel can move (escape) relative to the screw when it is expanded. Therefore, even if the spandrel expands, the decorative surface is less likely to be dented, and it is possible to suppress the occurrence of scale-like patterns as a whole.

In the spandrel mounting structure described above, the screw-driven portion of the spandrel has a valley shape that is recessed toward the substrate side, and the threaded portion of the screw is inserted into the ring-shaped resin member, and the resin member has the valley shape. It may be located above the bottom of the According to this, by performing construction management that limits excessive tightening that would cause deformation of the resin member, excessive tightening by the screws can be suppressed. Therefore, it is possible to suppress deformation of the screwed portion, and smooth movement (release) of the spandrel with respect to the screw when the expansion occurs.

Alternatively, the screwed portion of the spandrel has a valley shape recessed toward the base, the threaded portion of the screw is inserted into a washer member whose lower side is convex, and the lower side of the washer member has the valley shape. It may be located on the bottom side. According to this, the convexity on the lower side of the washer member fits into the bottom side of the valley shape recessed toward the base, thereby suppressing the deformation of the upper side of the valley shape due to the tightening of the screws to the screwed locations. Therefore, the movement (release) of the spandrel relative to the screw during the expansion becomes smooth.

Alternatively, a presser member having a pressing piece and a fixing piece is provided, and the tip side of the pressing piece is located at a trough of the spandrel that contacts the base as a position where a screw can be driven, and the trough is located at a trough of the spandrel that contacts the base. The valley portion may be pressed by the pressing piece due to the screwing force of a screw screwed into the fixing piece on the outside of the fixing piece. According to this, since slippage between the presser member and the valley portion is allowed, it is possible to move (release) the spandrel relative to the screw when the spandrel is expanded. Therefore, even if the spandrel expands, the decorative surface is less likely to be dented, and the occurrence of scale-like patterns as a whole can be suppressed.

In addition, the spandrel of the present invention has an edge portion on one side that is fastened to the base with screws, an edge portion on the other side that engages with the edge portion on the one side of the other spandrel, and a position between the two edge portions. and a backing member fixed to the back side of the decorative surface and having a depth extending to a surface parallel to the decorative surface and in contact with the edge on one side. do.

In the case of the spandrel, by attaching the spandrel to the base, the backing member is attached at the same time. Since the decorative surface of the spandrel is received from the back side by the front side portion of the lining member whose back side portion contacts the base, denting of the decorative surface when the spandrel expands is prevented, resulting in a scale-like pattern as a whole. can be suppressed from occurring.

In the spandrel, the backing member may be surface-adhered to the back surface of the decorative surface. According to this, the decorative surface of the spandrel can be stably received by the lining member from the back side thereof.

Further, a method for repairing a spandrel mounting structure of the present invention is a method for repairing a spandrel mounting structure in which a plurality of spandrels are attached to a base adjacent to each other, the spandrels being connected to the base from the opening side of the end face of the spandrel. A lining member that contacts the back surface of the spandrel and the base is inserted between the spandrel and the base.

With the above method, in a spandrel mounting structure that does not include a lining member, by inserting the lining member as an afterthought, the decorative surface of the spandrel is received by the lining member from the back side, and the spandrel expands. It is possible to prevent dents on the decorative surface and to suppress the occurrence of scale-like patterns as a whole.

According to the present invention, it is possible to prevent the decorative surface from being dented when the spandrel expands, and to suppress the occurrence of scale-like patterns in the spandrel mounting structure as a whole. The spandrel itself does not need to have a special structure, and various general commercially available spandrels can be used as the spandrel.

1(A), FIG. 1(B), FIG. 1(C), and FIG. 1(D) are schematic cross-sectional views showing the spandrel mounting structure of the embodiment, respectively. It is a schematic sectional view showing an example of screw fastening of the spandrel in the spandrel attachment structure of an embodiment. (A) of the same figure is a schematic sectional view showing another example of screwing the spandrel in the spandrel mounting structure of the embodiment, and (B) of the same figure is a schematic perspective view showing a washer member. . It is a schematic sectional view showing an example of screw fastening of the spandrel in the spandrel attachment structure of an embodiment. 5(A), FIG. 5(B), FIG. 5(C), and FIG. 5(D) are schematic cross-sectional views showing the spandrels of the embodiments, respectively. It is an explanatory view showing a repair method of the spandrel attachment structure of an embodiment. FIG. 2 is an explanatory diagram showing the occurrence of scale-like patterns due to the conventional spandrel mounting structure.

Embodiments will be described below based on the accompanying drawings. As shown in FIG. 1(A), the spandrel mounting structure of the embodiment has a structure in which a plurality of spandrels 1 are installed vertically adjacent to each other on a base plate 2 such as a wall surface. For example, the base plate 2 is a calcium silicate plate, and the base plate 2 is screwed to a horizontal rim 5 made of steel (rip channel steel, square pipe, etc.). In this embodiment, the base plate 2 and the horizontal furrow 5 made of lip channel steel constitute a base for mounting the spandrel 1 (see FIG. 6).

The spandrel 1 includes an edge 11 on one side, an edge 12 on the other side, and a flat decorative surface 13 located between the edges 11 and 12. The edge portion 11 on one side has a screw driving point 11a as a point in contact with the base plate 2 for driving the drill screw 3, and as an example, the spandrel 1 has a screw driving point 11a where the drill screw 3 is driven into the base plate 2. It is fastened to the main plate 2 and the horizontal furring 5. Further, the screw driving location 11a has a valley shape that is recessed toward the base plate 2 side, and has an oblique side portion that becomes a water return further toward the end side than the valley-shaped location. Moreover, the edge 12 on the other side engages with the lateral recessed portion of the edge 11 on the one side of another adjacent spandrel 1 .

In the spandrel mounting structure, the spandrel 1 is provided at a position that is between the decorative surface 13 of each spandrel 1 and the base plate 2 and at the center position of the decorative surface 13 in the width direction. A backing member 14 made of metal (such as a steel plate) and having a length is provided. The front side portion of this lining member 14 is in contact with the back side of the decorative surface 13 of the spandrel 1, and the back side portion of the lining member 14 is in contact with the base plate 2. More specifically, the lining member 14 has a substantially U-shape in which a pair of opposing piece parts 14a are connected by a connecting part 14b, and the connecting part 14b is the front side part, and the decorative surface is 13, and the ends of the opposing pieces 14a, 14a are in contact with the base plate 2 as the back side portions. This backing member 14 is fixed in advance to the back surface of the decorative surface 13 before it is attached to the base plate 2 by adhesive, double-sided tape, etc. attached to the connecting portion 14b.

Note that the lining member 14 is not limited to a U-shaped cross section, but may have a C-shaped cross section, a hat-shaped cross section, or the like.

The spandrel mounting structure shown in FIG. 1(B) includes a lining member 141 instead of the lining member 14 described above. The front side portion of this lining member 141 is in contact with the back surface of the decorative surface 13 of the spandrel 1, and the back side portion of the lining member 141 is in contact with the base plate 2. More specifically, the lining member 141 has a substantially U-shape in which a pair of opposing pieces 141a are connected by a connecting portion 141b, and one opposing piece 141a serves as the front side portion, It is in surface contact with the back surface of the decorative surface 13, and the other opposing piece portion 141a serves as the back side portion and is in contact with the base plate 2. This backing member 141 is fixed in advance to the back surface of the decorative surface 13 before it is attached to the base plate 2 with adhesive, double-sided tape, etc. attached to one opposing piece 141a. Note that the backing member 141 is not limited to a U-shaped cross section, but may have a C-shaped cross section, a Z-shaped cross section, or the like.

The spandrel mounting structure shown in FIG. 1(C) includes a lining member 142 instead of the lining member 14 described above. The front side portion of this lining member 142 is in contact with the back surface of the decorative surface 13 of the spandrel 1, and the back side portion of the lining member 142 is in contact with the base plate 2. More specifically, the lining member 142 has a hook shape in which the first piece 142a and the second piece 142b are orthogonal to each other, and the surface portion of the first piece 142a serves as the front side portion to form a decorative surface. 13, and the end of the second piece 142b becomes the back side portion and contacts the base plate 2. This backing member 142 is fixed in advance to the back surface of the decorative surface 13 before being attached to the base plate 2 with adhesive, double-sided tape, etc. attached to the surface of the first piece 142a. Note that the lining member 142 is not limited to a hook-shaped cross section, and may have a T-shaped cross section, a W-shaped cross section (wavy shape), or the like.

The spandrel mounting structure shown in FIG. 1(D) includes a lining member 143 instead of the lining member 14 described above. The front side portion of this lining member 143 is in contact with the back surface of the decorative surface 13 of the spandrel 1, and the back side portion of the lining member 143 is in contact with the base plate 2. More specifically, the lining member 143 is a hollow square pipe member with a rectangular cross section, and one surface 143a of the opposing long sides serves as the front side portion and is in surface contact with the back surface of the decorative surface 13. The other surface 143b on the opposing long side serves as the back side portion and is in contact with the base plate 2. This backing member 143 is fixed in advance to the back surface of the decorative surface 13 before being attached to the base plate 2 with an adhesive or double-sided tape attached to one surface 143a. Note that the lining member 143 may have a square or trapezoidal cross section. Further, the backing member 143 may be made of a solid, lightweight material (such as hard foamed resin) having a square, rectangular, or trapezoidal cross section. Alternatively, the backing member 143 may be made of a solid, lightweight material (foamed resin, etc.) with a square, rectangular, or trapezoidal cross section, and may have a structure in which a metal plate is attached to both or one of the front and back sides.

With such a spandrel mounting structure, the decorative surface 13 of the spandrel 1 is received from the back side by the front side portions of the lining members 14, 141, 142, 143 whose back side portions contact the base plate 2. Therefore, dents in the decorative surface 13 due to linear expansion of the spandrels 1 due to solar radiation are prevented, and the occurrence of scale-like patterns as a whole can be suppressed. Incidentally, dents in the decorative surface 13 can also be caused by the coming and going (unevenness) of the horizontal rim 5, but even when such an unevenness exists, the dents in the decorative surface 13 can be prevented by the above-mentioned lining member 14, etc. .

When at least one of the two contacts of the backing members 14, 141, 142, and 143 is surface contact, the decorative surface 13 of the spandrel 1 can be stably received from the back side thereof.

Furthermore, since the backing members 14, 141, 142, and 143 are bonded to the back surface of the decorative surface 13 of the spandrel 1, by attaching the spandrel 1 to the base plate 2, the backing members 14, 141, 142, and 143 will also be installed.

In the spandrel mounting structure described above, the drill screw 3 is driven into the screw driving location 11a of the one edge 11 without a pilot hole, but it may be driven after forming a pilot hole. The pilot hole may be smaller or larger than the thread diameter of the drill screw 3.

In the spandrel mounting structure shown in FIG. 2, a pilot hole 11b having a diameter larger than the thread diameter of the drill screw 3 and smaller than the head diameter of the drill screw 3 is formed in the screw driving location 11a. The spandrel 1 is fixed to the base plate 2 by the drill screw 3 passed through the pilot hole 11b, but a clearance is formed between the threaded portion of the drill screw 3 and the pilot hole 11b. It functions to allow movement of the pilot hole 11b when the spandrel 1 is expanded. Note that with the configuration having such a large pilot hole 11b, it is possible to prevent the decorative surface 13 from being dented due to the expansion, as described above, without necessarily providing the lining member.

Furthermore, in the configuration shown in FIG. 2, the threaded portion of the drill screw 3 is inserted through the ring-shaped resin member 31, and the resin member 31 is located above the bottom of the valley shape of the edge 11 on one side. ing. According to this, excessive tightening by the drill screw 3 is suppressed by performing construction management that limits excessive tightening that would cause the resin member 31 to deform. Therefore, deformation of the screw driving portion 11a can be suppressed, smooth movement (release) of the spandrel 1 with respect to the drill screw 3 during the expansion, and generation of dents in the decorative surface 13 due to the expansion can be prevented. In addition, even if excessive tightening of the screw driving location 11a by the drill screw 3 occurs, it is possible to suppress the deformation of the screw driving location 11a by deforming the resin member 31. Moreover, if the ring-shaped resin member 31 also functions as a packing, rainwater can be prevented from entering through the lower hole 11b.

Instead of the configuration shown in FIG. 2, a spandrel mounting structure shown in FIG. 3(A) may be used. This structure includes a washer member 32, as also shown in FIG. 3(B). This washer member 32 has a semi-cylindrical shape and is placed at the screw driving location 11a with the convex facing downward. The threaded portion of the drill screw 3 is inserted into the hole 32a of the washer member 32, and the washer member 32 is positioned with the convex facing downward between the lower side of the head of the drill screw 3 and the screw driving location 11a. . According to this, the lower protrusion of the washer member 32 fits into the bottom side of the valley shape recessed toward the base plate 2 side, so that the upper part of the valley shape is tightened by the drill screw 3 against the screw driving location 11a. Deformation of the sides can be suppressed. As a result, the spandrel 1 can be smoothly moved (released) relative to the drill screw 3 during expansion, and the occurrence of dents in the decorative surface 13 due to the expansion can be prevented. Note that the washer member 32 is not limited to a semi-cylindrical shape, but may be a hemispherical shape, a truncated cone shape, or the like. Further, the washer member 32 is not limited to metal, and may be made of resin.

Alternatively, a spandrel mounting structure shown in FIG. 4 may be used. This structure includes a pressing member 33 having elasticity. This presser member 33 has a fixing piece portion 33a fixed to the base plate 2, and a pressing piece portion 33b having a substantially gate shape (or an arch shape) that extends beyond the water return (hypotenuse portion) of the spandrel 1. are doing. The substantially gate-shaped (or arch-shaped) pressing piece portion 33b has a size such that a gap is formed between its inner surface and the edge portion 11 on one side. The lower end of the tip side of the pressing piece part 33b is located at the valley part 11d, and the drill screw 3 screwed into the fixing piece part 33a, which contacts the base plate 2 on the outside of the valley part 11d, is inserted into the valley part 11d. 11d is pressed by the pressing piece portion 33b. According to this, since slippage between the presser member 33 and the valley portion 11d is allowed, movement (escape) of the spandrel 1 relative to the drill screw 3 when it is expanded becomes possible. Therefore, it is possible to enhance the ability to prevent the appearance of dents in the decorative surface 13 due to the expansion. Further, the presser member 33 may be of any type as long as it has the substantially gate-shaped (or arch-shaped) pressing piece portion 33b of a size that does not come into contact with the edge portion 11 on one side, so that it is compatible with various spandrels. It is possible. Further, by having the flat plate-shaped fixing piece portion 33a, the structure is relatively simple. Further, the original spandrel arrangement structure can be adopted in which the valley portion 11d is brought into contact with the base plate 2. Note that with this spandrel attachment structure, it is possible to prevent the decorative surface 13 from being dented due to the expansion, even without necessarily providing the lining member.

Next, the spandrel 1A of the embodiment will be described. As shown in FIG. 5(A), FIG. 5(B), FIG. 5(C), and FIG. 5(D), this spandrel 1A is located on the back side of the decorative surface 13 and at the center of the decorative surface 13 in the width direction. A backing member 14, a backing member 141, a backing member 142, or a backing member 143 is provided at the position. The backing member 14, the backing member 141, the backing member 142, or the backing member 143 has a length somewhat shorter than the length of the spandrel 1, and is parallel to the decorative surface 13 and has an edge on the one side. It has a depth that reaches the surface in contact with 11. That is, the spandrel 1A is provided with the lining member 14, the lining member 141, the lining member 142, or the lining member 143 in advance. Note that the shapes of these backing members 14 and the like can be various shapes, such as a C-shaped cross section and a Z-shaped cross section, as described above. It is desirable that the spandrels 1A are surface-adhered to the back side of the decorative surface 13, like the backing member 14 and the like.

With such a spandrel 1A, by attaching the spandrel 1A to the base plate 2, the above-mentioned backing member 14 etc. are also attached at the same time. Since the decorative surface 13 of the spandrel 1A is received from the back side by the front side portion of the lining member 14 etc. whose back side portion contacts the base plate 2, the decorative surface 13 is dented due to the expansion of the spandrel 1A. is prevented, and the occurrence of scale-like patterns can be suppressed as a whole.

In the spandrel 1A, if the backing member 14 and the like are surface-adhered to the back surface of the decorative surface 13, the decorative surface 13 of the spandrel 1A can be stably received by the backing member 14 and the like from the back side.

Next, a method for repairing a spandrel mounting structure in which a plurality of spandrels 1 are mounted adjacent to each other on the base plate 2 will be described. Here, in the existing spandrel mounting structure, the upper and lower ends of the vertically arranged spandrels 1 are open to each other through openings, and the lower end surface of the lowermost spandrel 1 is closed with a closing member, and the uppermost spandrel 1 is closed with a closing member. The upper end surface of No. 1 is covered with, for example, a Kasagi. The repair method in this example is to remove the cap and insert the lining member 14 etc. through the upper end opening of the spandrel 1 at the highest position. That is, as shown in FIG. 6, by inserting the lining member 14 etc. between the spandrel 1 and the base plate 2 from the opening side of the end face of the spandrel 1, a plurality of spandrels 1 arranged vertically are formed. In each of the above, a backing member 14 and the like that contacts the back surface of the spandrel 1 and the base plate 2 can be provided as a post-installation.

With the above method, in a spandrel mounting structure that does not include a lining member, by inserting the lining member 14 etc. as a later attachment, the decorative surface 13 of the spandrel 1 is received from the back side by the lining member 14 etc., and the It is possible to prevent dents in the decorative surface 13 due to the expansion of the spandrels 1, and to suppress the occurrence of scale-like patterns as a whole. Note that the lining member 14 etc. inserted later may be connected to the lining member 14 etc. inserted first.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same scope or equivalent scope of the present invention.

1: Spandrel 1A: Spandrel 2: Base plate 3: Drill screw 5: Horizontal edge 11: One side edge 11a: Screw driving location 11b: Pilot hole 11d: Valley location 12: Other side edge 13: Decorative surface 14 : Backing member 14a : Opposing piece part 14b : Connecting part 31 : Resin member 32 : Washer member 32a : Hole 33 : Holding member 33a : Fixed piece part 33b : Pressing piece part 141 : Backing member 141a : Opposing piece part 141b : Connecting part 142: Backing member 142a: First piece 142b: Second piece 143: Backing member 143a: One side 143b: Other side

Claims (10)

A spandrel mounting structure in which a plurality of spandrels are attached to a base adjacent to each other, and between the spandrels and the base, the front side portion contacts the back side of the decorative surface of the spandrel, and the back side portion is attached to the base. A spandrel mounting structure comprising a contacting backing member. 2. The spandrel mounting structure according to claim 1, wherein at least one of the two contacts of the backing member with the back surface of the decorative surface is surface contact. 2. The spandrel mounting structure according to claim 1, wherein the backing member is bonded to the back surface of the decorative surface of the spandrel. In the spandrel mounting structure according to any one of claims 1 to 3, the screw head is larger than the thread diameter of the screw at a screw driving location where the screw for fixing the spandrel to the base is driven. A spandrel mounting structure characterized in that a pilot hole is formed with a diameter smaller than the diameter of the spandrel, and the spandrel is fixed to the base by a screw passed through the pilot hole. In the spandrel mounting structure according to claim 4, the screw driving location of the spandrel has a valley shape recessed toward the base, and the threaded portion of the screw is inserted through a ring-shaped resin member, and the screw part of the spandrel is inserted into the ring-shaped resin member. is located above the bottom of the valley shape. In the spandrel mounting structure according to claim 4, the screw driving location of the spandrel has a valley shape recessed toward the base, and the threaded portion of the screw is inserted through a washer member whose lower side is convex, and A spandrel mounting structure characterized in that the lower side of the washer member is located at the bottom side of the valley shape. The spandrel mounting structure according to any one of claims 1 to 3, further comprising a holding member having a pressing piece and a fixing piece, and a valley of the spandrel in contact with the base as a position where a screw can be driven. The tip side of the pressing piece is located at the location, and the valley is pressed by the pressing piece due to the screwing force of the screw screwed into the fixing piece outside the valley. Features a spandrel mounting structure. an edge on one side that is fastened to the base with screws, an edge on the other side that engages with the edge on the one side of the other spandrel, and a flat decorative surface located between the two edges; A spandrel comprising: a backing member fixed to the back side of the decorative surface and having a depth extending to a surface parallel to the decorative surface and in contact with the edge on one side. 9. The spandrel according to claim 8, wherein the backing member is surface-adhered to the back surface of the decorative surface. A method for repairing a spandrel mounting structure in which a plurality of spandrels are attached to a substrate adjacent to each other, wherein from the open side of the end face of the spandrel, between the spandrel and the substrate, the back side of the spandrel and the substrate are installed. A method for repairing a spandrel mounting structure, characterized by inserting a backing member that comes into contact with the spandrel.

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